Arched window blind



FIG. 1 is a rear perspective view of an arched window blind showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof.

The broken line showings of FIG. 1 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an arched window blind, as shown and described. 